The crew completed the resizing of U.S. spacesuits on Monday, conducted routine tests of the cabin atmosphere and prepared the Russian laptops for testing the Automated Transfer Vehicle satellite navigation system. They also prepared for the activation of the Oxygen Generation System later this year. Flight Engineer Mikhail Tyurin continued his periodic status checks on the Plants-2 micro-gravity growth experiment, including the newly planted barley and pea seeds in the Lada-10 greenhouse.